What is the pH of a 4.9×10-8 molar aqueous perchloric acid solution? (Hint: The H3O+ due to the water ionization is not negligible here.)
What is the pH of a 1.8×10-9 molar aqueous perchloric acid solution? (Hint: The H3O+ due to the water ionization is not negligible here.) _______?
Both parts CHM-122 Quiz #16 NAME: 1. The overall dissociation of malonic acid, H.C,H-Os, is represented below. The overal dissociation constant is also indicated To a 0.025-molar solution of malonic acid, a strong acid is added until the pH is 1.5.Calculate the ICaHi solution (Assume the change in volume is negigible.) K30x 10* resulting The value of the second dissociation...
This reaction is classified as: Strong Acid + Strong Base, Weak Acid + Strong Base, Strong Acid + Weak Base, Weak Acid + Weak Base. The extent of this reaction is: Below 50%, 50%, Above 50%, 100% When 35.0 mL of 0.300 M perchloric acid and 35.0 mL of 0.150 M barium hypochlorite are combined, the pH of the resulting...
Use the Acid-Base Table to write net equations and to determine the equilibrium constants for the Bronsted acid-base reactions that occur when aqueous solutions of the following are mixed. See the instructions for writing chemical equations given above. Reactants Acid(1) + Base(2) = Base(1) + Acid(2) K a) HClO4 and KF b) HIO3 and NH3 c) HCN + KClO Click...
Part C a solution that is 4.0×10−2 M in HClO4 and 5.3×10−2 M in HCl Express your answer to two decimal places. pH = SubmitMy AnswersGive Up Incorrect; Try Again; 5 attempts remaining; no points deducted Part D a solution that is 1.11% HCl by mass (Assume a density of 1.01 g/mL for the solution.) Express your answer to three...
please explain the steps please 5. Determine the Ky for CN at 25°C. The K, for HCN is 4.9 x 10-10. 6. Determine the Ka of an acid whose 0.294 M solution has a pH of 2.80. 7. Determine the acid dissociation constant for a 0.020 M formic acid solution that has a pH of 2.74. Formic acid is a...
Phenol, the active ingredient in Chloraseptic throat spray, is a monoprotic weak acid whose formula is HC6H5O (Ka = 1.3 * 10-10). Suppose 12.50 g of phenol is dissolved in water and enough water is added to bring the total solution volume to 250.0 mL. Write the balanced chemical equation for the resulting equilibrium. Identify all conjugate acid/ base pairs....
(6) Let's see how the spectator" ions present in solution affect the pH of a weak acid (a) What is the pH of a 0.0200 M benzoic acid (Ka = 6.28 x 10) solution in water? (b) What is the % dissociation of the benzoic acid in pure water? Now we'll add some "spectator" ions to the solution. If the...
Assuming equal concentrations, rank these solutions by pH. CaBr2 LiOH CH3NH3Br HClO4 Mg(ClO)2